From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12225 invoked by alias); 19 May 2014 12:32:56 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 12162 invoked by uid 55); 19 May 2014 12:32:50 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/61184] [4.10 Regression] wrong code (that hangs) by LTO on x86_64-linux-gnu Date: Mon, 19 May 2014 12:32:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.10.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.10.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-05/txt/msg01600.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61184 --- Comment #3 from Richard Biener --- Author: rguenth Date: Mon May 19 12:32:15 2014 New Revision: 210611 URL: http://gcc.gnu.org/viewcvs?rev=210611&root=gcc&view=rev Log: 2014-05-19 Richard Biener PR tree-optimization/61184 * tree-vrp.c (is_negative_overflow_infinity): Use TREE_OVERFLOW_P and do that check first. (is_positive_overflow_infinity): Likewise. (is_overflow_infinity): Likewise. (vrp_operand_equal_p): Properly treat operands with differing overflow as not equal. * c-c++-common/torture/pr61184.c: New testcase. Added: trunk/gcc/testsuite/c-c++-common/torture/pr61184.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vrp.c